期刊
PLANCK SCALE
卷 1196, 期 -, 页码 44-+出版社
AMER INST PHYSICS
DOI: 10.1063/1.3284399
关键词
Quantum Gravity; Functional Renormalization Group; Asymptotic Safety
资金
- Government of Canada through NSERC
- Province of Ontario through MRI. P.F.M.
- Netherlands Organization for Scientific Research (NWO)
- Deutsche Forschungsgemeinschaft (DFG) [SA/1975 1-1]
We summarize recent progress in understanding the role of higher-derivative terms in the asymptotic safety scenario of gravity. Extending previous computations based on the functional renormalization group approach by including a Weyl-squared term in the ansatz for the effective action, further evidence for the existence of a non-Gaussian fixed point is found. The fixed point also persists upon including a minimally coupled free scalar field, providing an explicit example of perturbative counterterms being non-hazardous for asymptotic safety.
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